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53 lines
1.5 KiB
JavaScript
53 lines
1.5 KiB
JavaScript
// This file was procedurally generated from the following sources:
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// - src/dstr-binding/ary-ptrn-elision-step-err.case
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// - src/dstr-binding/error/async-gen-func-expr-dflt.template
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/*---
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description: Elision advances iterator and forwards abrupt completions (async generator function expression (default parameter))
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esid: sec-asyncgenerator-definitions-evaluation
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features: [generators, async-iteration]
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flags: [generated]
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info: |
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AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
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AsyncGeneratorBody }
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[...]
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3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
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AsyncGeneratorBody, scope, strict).
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[...]
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13.3.3.6 Runtime Semantics: IteratorBindingInitialization
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ArrayBindingPattern : [ Elision ]
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1. Return the result of performing
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IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
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as the argument.
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12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
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Elision : ,
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1. If iteratorRecord.[[done]] is false, then
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a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
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b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
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c. ReturnIfAbrupt(next).
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---*/
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var following = 0;
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var iter =function* () {
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throw new Test262Error();
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following += 1;
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}();
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var f = async function*([,] = iter) {
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};
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assert.throws(Test262Error, function() {
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f();
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});
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iter.next();
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assert.sameValue(following, 0, 'Iterator was properly closed.');
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